Tag Archives: catalytic converter

A Tale of Two Cats

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I just took delivery on some parts from FCP Groton and am trying to figure out if I got the right catalytic converter. I photographed the new and old part together and it looks like the new one is different. I’m not sure if it’s just a different design or a totally different part.

I have a 1992 245 non-california. It’s Davico DV008, ref #8551608. Part listing here.

I’m cross-posting on the Brickboard for input.

UPDATE: I just installed and it fits perfectly, better than the old one. I’m afraid my problem may be the O2 sensor though since the check engine light is still on and it still lags on acceleration. I’m heading out for inspection.

My Cracked Pipe

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exhaust

In the continuing saga of my exhaust leak, I’ve discovered a new issue. There’s a big crack in the pipe going into the catalytic converter.

I think I missed it last time I was under there because I was looking from the other side. But with the camera the hole reveals itself. It’s only 2 years old, so I don’t know why it would have a fracture like that. It looks like it happened from over-tightening.

I posted to Brick Board here.

Exhaust Leakage

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I just posted this on the Brick Board:

My brick rasps awful loud and I went under and found where it’s leaking. It’s at the flanged fittings where the header meets the cat. converter. I got a generic exhaust gasket from a local shop and it fit correctly. The old one was held on by one out of the three holes.

I tightened up the bolts but it still leaks. When I hold my hand around the back of the flange for the cat converter I can feel exhaust leaking out. It’s on pretty tight though, so I’m not sure why it would still be leaking. I tightened each bolt equally. Could they be too tight? Bad gasket? Bad flange?